An asterisk (*) in a cell indicates that the actual rules are more
complicated than indicated in the table above.

† Categories in the "Parents" column refer to parents that list
the given categories in their content model, not to elements that themselves are in those
categories. For example, the a element’s "Parents" column says "phrasing", so any
element whose content model contains the "phrasing" category could be a parent of an a element. Since the "flow" category includes all the "phrasing" elements, that means
the th element could be a parent to an a element.

audio (if the controls attribute is present); dl (if the element’s children include at least one name-value group); input (if the type attribute is not in the Hidden state); ol (if the element’s children include at least one li element); ul (if the element’s children include at least one li element); Text that is not inter-element whitespace